20kW Axial Flux Direct Drive Permanent Magnet Generator 380V 200rpm Low Speed This 20kW axial flux direct drive permanent magnet generator uses a pancake style rotor to deliver high torque at just 200rpm without a gearbox. The gearless construction removes mechanical loss and wear, making this permanent magnetic generator the reliable heart of small wind turbines and low-head hydro systems. Key Features Axial flux pancake design delivers high torque density in a short axial